Title :
Sensitive method for detection of winding deformation during short circuit test
Author :
Gopalakrishna, S. ; Ilampoornan, M.K. ; Jayashankar, V.
Author_Institution :
Meas. & Instrum. Lab., Indian Inst. of Technol. Madras, Chennai
Abstract :
The mechanical strength and integrity of the transformer windings is established by short circuit test. Reactance comparison method and frequency response analysis methods are conventionally used to assess the failures. Concurrent application of various high frequency excitations has also been tested. We show that optimized multisine excitation has the potential of high sensitivity towards displacement identification.
Keywords :
frequency response; mechanical strength; transformer windings; frequency response analysis methods; integrity; mechanical strength; reactance comparison method; short circuit test; transformer windings; winding deformation detection; Chirp; Circuit testing; Dielectrics and electrical insulation; Electric variables measurement; Frequency; Instruments; Materials testing; Mechanical variables measurement; Power transformer insulation; Voltage;
Conference_Titel :
Electrical Insulating Materials, 2008. (ISEIM 2008). International Symposium on
Conference_Location :
Mie
Print_ISBN :
978-4-88686-005-7
Electronic_ISBN :
978-4-88686-006-4
DOI :
10.1109/ISEIM.2008.4664444
